"retaliating" in the verb sense
1. revenge, avenge, retaliate
take revenge for a perceived wrong
"He wants to avenge the murder of his brother"
2. retaliate, strike back
make a counterattack and return like for like, especially evil for evil
"The Empire strikes back"
"The Giants struck back and won the opener"
"The Israeli army retaliated for the Hamas bombing"
Source: WordNet® (An amazing lexical database of English)
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